Runescape

RuneScape is a massively multiplayer online role-playing game developed and published by Jagex, set in the fantasy world of Gielinor. It has been continuously developed since its original launch in 2001 and features skills, quests, and player-versus-player combat, with game data stored in proprietary cache file formats.

Click any badge for full per-format details - what it is, how to open it and how to convert it.